Software labeled as "portable" or "lite" is typically modded to run directly from a USB drive or external storage without requiring a formal installation on the host computer's operating system. The "PAF" format specifically refers to a standard used by PortableApps.com, though they do not officially host or support Adobe products due to licensing restrictions. Do Photoshop have portable version? - Adobe Community
: This portable version includes a vast array of editing tools, from basic adjustments like brightness and contrast to more advanced features such as layers, filters, and effects. adobe photoshop cc lite portable 1412 paf format full top